Q113
General ScienceChemistry
Select the one having pH < 7.
- a.Lemon juice
- b.Lime water
- c.Human blood
- d.Antacid
Answer: (A) Lemon juice
Lemon juice is acidic (pH around 2, well below 7) due to its citric acid content, whereas lime water, human blood (pH ~7.35-7.45) and antacids are all mildly to strongly basic (pH above 7).